If you are just getting started with using you Web Cube the /shop/ page looks like in the screenshot below. This page is not a product category page and is intended for displaying marketing messages.
To customize this page we can use the front-end editing feature located at the top of the page. To access this feature make sure you are logged in as an administrator.
For more control we can edit the template for for this page which is meta_catalog/index.html.